Clever Checker

Check grammar, AI writing, plagiarism and readability, or rewrite text, on any page. Results from cleverchecker.com.

Clever Checker puts the whole cleverchecker.com toolkit in a side panel, so you can check writing where you wrote it instead of pasting it into another tab. Select text on any page, right-click, and pick Clever Checker. The panel opens with your selection already in it. - Grammar and spelling, checked as you type, with corrections you apply in one click - AI-writing detection, scored sentence by sentence - Plagiarism, matched against sources on the open web - Readability, word and keyword counts, reading time - Paraphrasing, humanising and summarising, written back into the field you were typing in Nothing is set up and nothing is configured. There is no sign-in step and no server address: open the panel and press the button. Five checks a day are free without an account, and signing in on the website carries a subscription across to the panel. The panel only ever sees text you select or type into it. It does not read the pages you browse, and it carries no analytics. Free: five checks a day, up to 2,000 words, full results from every checker. The four rewriting tools show three quarters of their output and keep the last 25% for Pro, which also removes the daily limit and doubles the length.